That is the check engine light. It blinks under a severe misfire.
That's the OD warning light, Check wiring, relay, Solenoid, and switch
Warning lights in a car are meant to indicate a problem. When the Check Engine light comes on after 30 mph, it means that the car is not running well, that there is an issue with fuel, or electricity getting to the engine.
The button on your dashboard
With a scan tool, or try turning key on, off, on, off, on and counting the blinks of the check engine light. blink, blink, blink, pause, blink would be 31.
On some if you turn key on, off, on, off, on. The check engine light may start to flash the code. blink, blink, bink, pause blink would be 31.
A flashing engine light is usually a misfire.
There are pages and pages of things that can cause a check engine light. You need to have it checked with a scantool. Then the code can be diagnosed and repaired. The reason it blinks is it is warning that the catalytic converter is on the verge of overheating because of misfires in the ignition system.
Misfire detection.
It is indicating that there is a fault with the engine of the car. You need to take it to a garage for repair/service.
first you nee to check and see if your car is referred to as OBDI or OBDII if its ODBI then you start with the car off.. turn the key to run but do not start the engine.. at this point you have less that 5 seconds to push the gas pedall all the way to the floor and press the overdrive button five times... then the check engine light will stay on.. and then blink... next its going to blink out the code for you for ex. blink-pause-blink blink-pause blink blink blink-pause blink n that would mean the problem code is 1231 just Google BMW problem codes and use that dcode to find out what the issue is..
The OBD2 system will not BLINK codes for you. It requires a engine scanner to read the codes. HAVE ENGINE SCANED. Some parts stores will do that for free.
Are you talking about the lights that are under the gauges, that read "check engine", battery, oil press, etc.? If so, your ecu is not getting a STA signal, or start signal. You need to test for ecu trouble codes. To do this... go under the bonnet and find the DIAGNOSIS box. Jumper terminals TE1 and E1. Start the engine. Watch the Check engine light blink. It works kind of like Morse code. For instance... BLINK BLINK ... pause ... BLINK BLINK BLINK would be a code 23. This site can help you determine the meaning of the code. Good luck. http://docs.azsupracentral.com/Engine%20Error%20Codes.pdf